Prothepic
A 'prothepic' person is someone who doesn't take life seriously enough. They find themselves stating 'it is what it is' quite often, despite their body and livelihood nigh collapsing at the seams.
'Smith is quite prothepic, isn't he?'
'Yeah, I swear he hasn't gone a day in the last week without alcohol.'
'Yeah, I swear he hasn't gone a day in the last week without alcohol.'